Seiko Cal. 6664 - 537

The Seiko 6664-537 represents an important milestone in Seiko's 1994 lineup. It features a Cream dial protected by a Acrylic crystal and offers 70m of water resistance. [seikata-wm-f4134a5c80b6]

Also known as: Monster, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

43mm

Case Thickness

15.4mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Cream

Jewels

24j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1994

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